Questions before you buy?
Get in touch with us — our specialists will guide you and help you choose the right part. We respond quickly and run our store with full reliability.
Prepare to take the performance of your BMW M3/M4 to a whole new level. The Wagner Tuning Competition Water Cooler Kit is designed to push the limits of performance and give your vehicle unparalleled performance.
The 3.0 liter S55B30 turbo engine of the BMW M3/M4 is equipped with an indirect charge air cooling circuit, which requires innovative cooling technology. Our upgrade water cooler takes advantage of a dedicated cooling water circuit to reduce cooling water temperature and improve charge air performance. Thanks to our high-performance competition racing mesh, the radiator volume is increased by an impressive 89% (front) and 94% (side). This enables maximum heat transfer while ensuring sufficient airflow for adjacent components such as the engine water cooler. Our water coolers are equipped with a thermally conductive anti-corrosion coating that ensures a long-term and reliable cooling effect. Installation is straightforward and almost plug & play thanks to our detailed installation instructions. Get ready to optimize your driving dynamics and experience an exceptional driving experience.
Don't miss the opportunity to exceed the performance limits of your BMW M3/M4 and enjoy the ultimate driving experience.
Competition water cooler kit for the BMW F80-82-83 M3/M4
Dimensions OEM water cooler (frontal):
590 mm x 308 mm x 25 mm
V = 4.5 liters
A = 1817 cm2
Wagner Tuning water cooler dimensions (front):
568 mm x 468.4 mm x 32 mm
V = 8.5 liters (+89%)
A = 2660.5 cm2 (+46.4%)
Part number 400001003
Kit comes with:
1x front water cooler (low-temperature circuit)
1x installation instructions
Type of warranty: manufacturer's warranty.
Warranty period: 24 months.
The manufacturer's warranty means that in the event of a defect or malfunction, the product will be repaired or replaced by an authorized service center. In most cases, proof of purchase (receipt or invoice) is required.
To submit a warranty claim, please contact our store via the warranty claim form. The product must be sent back to us at your own expense. If the claim is approved, we will refund the shipping costs upon presentation of proof of payment.
If you have any questions regarding the warranty conditions or the status of your claim, please contact our customer service department.






